The removal of oxygen from gas streams: applications in catalysis and gas chromatography

Manganese (11) oxide supported on Celite has been found to reduce the oxygen concentration in nitrogen streams to 1 part in 109.5, as measured by the resistance of a heated cobalt oxide filament. The supported manganese oxide has been used specifically to protect catalytic materials the properties of which are studied by using them as gas chromatographic columns. Its chromatographic and noncatalytic properties enable it where necessary to be packed directly into such columns.